Line Plot from Scientific Research

660 nm resonance Raman spectra of empty metallic SWCNT (gray), (Kr@C60)@SWCNT (blue), and (nKr@C60n)@SWCNT (green), highlighting enlarged RBM, D, and 2D bands (inset). The additional RBM associated with the formed nested nanotubes after thermal treatment is marked with an asterisk. Spectra have been normalized to the intensity of the SWCNT G-band and offset on they-axis for visual clarity.

DOI